Metallic film reflector and manufacturing method thereof
A mirror and metal film technology, applied in the field of mirrors, can solve the problems of unsatisfactory imaging effect and low reflectivity, and achieve the effects of low refractive index, high reflectivity, and improving the hardness of the film layer.
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[0024] A metal film reflector includes a glass substrate 1. On the composite surface of the glass substrate 1, six film layers are sequentially and adjacently composited from inside to outside. The first film layer is the innermost layer. SiO 2 Layer 21, the second layer is Al 2 O 3 Layer 22, the third layer is Ag layer 23, and the fourth layer is Al 2 O 3 Layer 24, the fifth layer is SiO 2 Layer 25, the outermost layer is TiO 2 Layer 26.
[0025] The first film layer SiO 2 Layer 21, the silicon dioxide layer, as a base film, has a higher transmittance and a lower refractive index, SiO 2 The thickness of the layer 21 is 5-15 nm. nm is nanometer, 1m=10 9 nm.
[0026] Al of the second film layer 2 O 3 The layer 22, the aluminum oxide layer, serves as a transition layer that increases the adhesion of the Ag layer. Al 2 O 3 The thickness of the layer is 10-20 nm.
[0027] The Ag layer 23 of the third film layer, that is, the metallic silver layer, serves as the main reflection layer, s...
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